kubespray/playbooks/install_etcd.yml

---
- name: Add worker nodes to the etcd play if needed
  hosts: kube_node
  roles:
    - { role: kubespray-defaults }
  tasks:
    - name: Check if nodes needs etcd client certs (depends on network_plugin)
      group_by:
        key: "_kubespray_needs_etcd"
      when:
        - kube_network_plugin in ["flannel", "canal", "cilium"] or
          (cilium_deploy_additionally | default(false)) or
          (kube_network_plugin == "calico" and calico_datastore == "etcd")
        - etcd_deployment_type != "kubeadm"
      tags: etcd

- name: Install etcd
  hosts: etcd:kube_control_plane:_kubespray_needs_etcd
  gather_facts: False
  any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
  environment: "{{ proxy_disable_env }}"
  roles:
    - { role: kubespray-defaults }
    - role: etcd
      tags: etcd
      vars:
        etcd_cluster_setup: true
        etcd_events_cluster_setup: "{{ etcd_events_cluster_enabled }}"
      when: etcd_deployment_type != "kubeadm"